BS EN 61386-25:2011 pdf download

BS EN 61386-25:2011 pdf download.Conduit systems forcable management Part 25: Particular requirements—Conduit fixing devices.
10.101,4 After the test, the conduit she?? still be supported by the conduit fixing devices. This test is not intended to check the fixing into the mounting surface,
10.102 Axial load test
10102.1 Conduit fixing devices declaring axial conduit retention according to 6 1.102 are tested as follows:
Conduit fixing devices which can be used with any type of conduit, with outside diemeters according to IEC 60423, she?? be tested using a steel mandrel of appropriate length with an outside diameter according the minimum diameter of the relevant size.
The steel mandrel shall have a surface roughness of 7 pm Ra in accordance with ISO 4287. The manufactu.nng tolerance of the mandrel shall be (0o )mm up to and including 20 mm and (00,03) mm above nominal size 20 mm. The mandrel is assembled to a conduit fixing device.
in accordance with the manufacturer’s instructions and Figure 103.
Conduit fixing devices which can only be used with a specific conduit shall be tested using that conduit and the manufacturer shall declare the performance of the combination of conduit and fixing device,
A sample of conduit with appropriate length is assembled to a conduit fixing device, in accordance with the manufacturer’s instructions and Figure 103.
For metallic fixing devices, the test load, as declared by the manufacturer or responsible vendor, Is applied, without shock, for a period of (300 .t 10) a at ambient temperature.
For non-metallic and composite fixing devices, the sample assembly is then placed in a full draft air circulating oven. The tests are carried out after the oven temperature has reached and maintained the declared maximum temperature according to Table 2 with a tolerance of
(1) C. The load is applied, without shock. Then the axial load is maintained for (300 ± 10) s.
10.102,2 Alter the test, the conduit shall remain properly assembled to the conduit fixing device, the conduit shall not have displaced more than 2 mm through the conduit fixing device and there shall be no damage visible to normal or corrected vision without magnification.
11 Electrical properties
This clause of Part I is not applicable.
12 Thermal properties
This clause of Part I is not applicable.
13 Fire hazard
This clause of Part 1 is applicable. If declared as nonflame propagaling, conduit fixing devices are tested as conduit fittings at a glow wire temperature of 650 C.
14 External Influences
This clause of Part I is applicable except as follows.